Mega shift raised a quote on me last minute regardless of a contract signed and agreed to.

I received a quotation from Mega shift a week before my moving date, and after receiving other quotes from various companies. I chose to take a chance with Mega shift as they had the lowest price to move from a Gauteng location to a KZN location. They sent a contract which had the exact address for the pick up and exact address for the drop off and the required half price deposit before bookings including the total to be paid. A day before the pick up date, I received a call to confirm that I booked for my things to be picked up at my place and dropped off at their depot in Durban which was an hour away from where I requested. When I queried this they rep**** by saying that it was indeed mentioned to me that I had to pick up at the depot and if I wanted them to send my items to my desired place then I needed to pay more although it clearly stated in the contract where my drop off location was. After I showed them the contract and quotation that I agreed to, then they said that this was a mistake made by their new employee, and will not be delivering using that quote because it was underquoted. I asked that they carry out this delivery as per signed contract because it was last or send me a refund. They refused to do any of the 2 because the contract states that there's no refund, and also refused to carry out the delivery although it was their mistake. I had to make alternative arrangements with another company while trying to get answers and reimbur*****t for my deposit as I couldn't understand why they wanted more last minute. After a few back and forths, they agreed to pay me back. I had to beg for feedback for days and days and then they sent me a claim forms after I made countless attempts to get feedback. After signing the claim form, I still had to made countless contact with them but they keep saying they will pay. No given timeframe etc, and now they say that the person who does transfers is on leave. Till today I haven't received my refund and I follow up, there's always an excuse or they just say "we will do it". I don't have the time to go open a case or attend court as I'm starting something new at another province but I'm really not happy by the way Mega shift treated me. Till today there's no proper feedback or timeframe given as to say besides "we will do it" and then that's it.