Extremely poor pension fund administration

My previous employer's pension fund is with the Sanlam Umbrella Pension Fund. Upon leaving my previous employer at the end of April, I requested a transfer out of this fund and into the Old Mutual Superfund. Firstly, it took Sanlam until the start of August to finalise the payment. At the end of August I realised that the transfer does not show in my Old Mutual account and after contacting Old Mutual, they stated that they did not receive any proof of transfer or the necessary documents from Sanlam to allocate the transfer. I contacted Sanlam on 1 September and again on 9 September. Until this day I received no response from Sanlam and the transfer still does not show in my OM account. As such, it is clear that Sanlam still did not provide proof of the transfer to Old Mutual. It is inexcusable for such a large company to have such poor administration. My next step would be the pension funds adjudicator.