Poor client service

Deposited money in the 91 Guernsey a/c on 13 December 2024. As of this morning my unit trust account has still not been credited. Three email interactions, including the one on 23 December confirming 91 would process the transaction (not!). Two calls to client service on 31 Dec 24 and 7 Jan 25. And a visit to 155 West St, Sandton on 7 Jan 25 to be kept waiting in a foyer for 40 minutes. Left in frustration without anyone bothering to come down. Is the next course of action a complaint to the FCSA? Maybe it's just to me but what has happened to their service levels since the split from Investec?