SAME DEVICE AND SAME IMEI

On the 28th October I starting experiencing network coverage on my mobile I called my services provider which is Telkom for assistance they couldn’t and advised me to go to my nearest branch. So the following day on the 29th October I went to Telkom store and when they check on their system it showed my phone was blacklisted which I didn’t request that. I call Telkom customer care to unblacklist it but they couldn’t do so as the phone was blacklisted by MTN ***** I have go to MTN for assistance. On Monday 31st October I went to MTN and get help I was assistant by Shimane n Zanele at MTN store in Mokopane.Then they told me that MTN is blacklisting all phone which were ****** from them . So I have Im not using MTN Im using Telkom I have not used MTN. So they requested I bring in PROOF OF PAYMENT, ID COPY & AFFIDAVIT which I did so. Then thats when they told me that they can’t help because MTN in Eastgate Mall on the 08th June 2022 issued the same phone as same mine with the same IMEI No. They even showed to me on a print out.So this means my phone was ****** from MTN they can’t help. As now I m sitting with a phone which not working n I have paid from Telkom. MTN is claiming it was ****** PLEASE HELP How is this possible