Unknown Apple ID’s keeps prompting for passwords on my AW s5

I keep getting prompted to enter two different Apple ID’s that are nothing to do with me on my Apple Watch. I cancel them but then the prompt appears on my phones. I hit ‘not now’ and the prompt then re-appears on my watch. This happens until it stops. Might be prompted once or I might be prompted twenty times in succession. I’ve found only a couple of other people this has happened to and Apple Support still don’t know what is wrong with it. Has this happened to you and was it resolved?

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