Telkom deposit maladministration

I have been a loyal customer to Telkom for four years. They have first supp**** met with ADSL and then LTE. I am now trying to switch to Fibre, put my order has been in "pre-order status" for about a year, whilst my neighbors are all happily enjoying fibre. I have with a lot of effort managed to cancel my service with Telkom, however there is a R700.00 deposit due to me as clearly showing on the statements, and suddenly Telkom has no clue how to repay deposits. My calls have been transferred and hung op on for a week now. I've been sent to the nearest store, they know nothing either. I would appreciate Telkom to contact me and arrange for payment of this deposit. Kind Regards