Unfair treatment

I will like to register a disappointment and poor customer service I’m receiving from Alexander Forbes, my company emailed my pension withdrawal form on the 29th of April 2021; after a week I also forwarded the same to them & once again for the 3rd time I forwarded the form to them, HR dept followed up with them and they assured us that they have received the form.

Only on the 25th of May when I thought I will soon be receiving payment is when I receive an sms confirming that the claim is received. I then emailed them to query this and I got a reply that said my withdrawal form was only received a month later, how possible is that. What must I do in the meantime; should I just wait for the bank to come repossess my cars & pay heavy interest for my home bond because of their incompetence. This is really unacceptable behavior from them.