I don’t think a phone number being associated with spam calling would be enough for Fidelity to black-list you but I suppose if they’re only blocking your onlin

I don’t think a phone number being associated with spam calling would be enough for Fidelity to black-list you but I suppose if they’re only blocking your online login (and not your transactions) it could be a possibility. You could get a pre-paid sim card/phone number and try signing up for Uber and Instagram with your same address, email, credit card details, etc. and see if your account gets blocked.