AmEx offers: 5 off 125 on cellphone bill, 4x, YMMV

Saw this offer today on multiple AmEx card accounts I manage.

Details
Get a $5 statement credit by using your enrolled eligible Card to spend a minimum of $125 in one or more transactions when you pay your cell phone bill directly with a US wireless telephone service provider by 6/10/2022. Limit of 4 statement credits (total of $20). See terms.

Offer Terms
Enrollment limited. Must first add offer to Card and then use same Card to redeem. Only U.S.-issued American Express® Cards are eligible. Limit 1 enrolled Card per Card Member across all American Express offer channels. Your enrollment of an eligible American Express Card for this offer extends only to that Card. Offer valid only for payments for wireless telephone service charges made directly with US wireless telephone service providers via online, mobile app, or by phone. Purchases made with third parties, authorized retailers or resellers are excluded. Excludes purchases for VoIP, hardware, equipment, and bundled home/cable services. Offer is non-transferable. Limit of 4 statement credits (total of $20 back) per Card Member. You may not receive the statement credit if we receive inaccurate information or are otherwise unable to identify your purchase as qualifying for the offer. For example, you may not receive the statement credit if (a) the merchant uses a third-party to sell their products or services; or (b) the merchant uses a third-party to process or submit your transaction to us (e.g., using mobile or wireless card readers); or (c) you choose to make a purchase using a third-party payment account or make a purchase using a mobile or digital wallet. Merchants are assigned codes based on what they primarily sell. Your transaction also will not qualify if the merchant's code is not eligible. Purchases may fall outside of the offer period in some cases due to a delay in merchants submitting transactions to us or if the purchase date differs from the date you made the transaction (for example, the purchase date for online orders may be the shipping date). Statement credit will appear on your billing statement within 90 days after 6/10/2022, provided that American Express receives information from the merchant about your qualifying purchase. Note that American Express may not receive information about your qualifying purchase from merchant until all items/services from your qualifying purchase have been shipped/provided by merchant. Statement credit may be reversed if qualifying purchase is returned/cancelled. If American Express does not receive information that identifies your purchase as qualifying for the offer, you will not receive the statement credit. Limit 1 enrolled Card per American Express Card online account. The enrolled Card account must be active, not past due, canceled, or have a returned payment outstanding to receive statement credits. Any benefit earned from this offer is in addition to the rewards (i.e. Membership Rewards or cash back) earned as part of your existing Card benefits, but your ability to earn spend-based rewards for the purchase will be based on the amount after any statement credit or other discount is applied. Amex Offers are dynamic and personalized, so the offers you see may change. For questions regarding your Card Account, please call the number on the back of your Card. By adding an offer to a Card, you agree that American Express may send you communications about the offer. POID: K3AE:0001

There's at least one other variant of this offer: 5 off 75, 4x. The POID for that one is K3AE:0002 and the expiration date is the same.

https://www.amexoffers.com