Refuses to accept my pension transfer from another fund!!!!

I have been struggling for MONTHS now to get my pension transferred from another fund to Sanlam after I changed jobs. The previous fund is sending mails weekly requesting a ROT from Sanlam - still no response, and today, sanlam responded with another plan name and nr (not belonging to me) and REFUSES to accept the transfer money! this is UNACCEPTABLE!!! very very dissapointed with Sanlam!!!