Cancelled December 2022, still getting monthly bill and ohone calls, even paid. And asked ti be cancelled jan feb mar april, this is now rediculous

I have cancelled the below 3 times and now handing this over to the ombudsman

NFORMATION FOR *** Your contract has either come to an end and you are now on month to month, or you do not have any device commitment fees remaining on your contract. Please contact us to check if you are eligible for an upgrade. INFORMATION FOR *** Your contract has either come to an end and you are now on month to month, or you do not have any device commitment fees remaining on your contract. Please contact us to check if you are eligible for an upgrade. USAGE SUMMARY - ***