Vehicle (taxi) sale pending an letter of executorship and expecting the decesed dependants to be liable for the outstanding balance

I am writing this review with a heavy heart. My late father bought a vehicle (taxi) with Wesbank. It got possessed and a few months after they realized they could not go ahead with a sale without speaking to the owner regarding the refinance option or to sell it. The time I was contacted my dad was heavily sick and passed on. During the funeral arrangement they track our home address in Cape town to try to find a way foward and at the time my sister and I were in Eastern cape to burry my father and my sister whom they died on consecutive days. After coming back we were in contact with them regarding assisting us with as we stated that we want to keep the car, get it to operate again so that it can pay itself until its paid of. We struggled to get the letter of execution until to date but the submission of relevant documentation through a lawyer that is assisting us. It has been a frustrating journey as we don't have access of his estates and we invested a lot with our savings to try and save the business including everything under his estates. I was told that they tried calling me without a success including an email that I never received and with that I can share my emails screenshot and non of those emails contain the email that is claimed to have informed me that they were taking the next step. What I do not understand is that they came to my fathers house which my sister now resides but for this case when they wanted to sell the car, they went ahead without our consent knowing very well that the car would be sold to next to nothing and then we have to be liable for the remainder of the debt whereas everything that is left in his states, we had to support out of our hard earned savings and loans that we had to acquire. They also mentioned that the estates is still not registered as they have been checking, so that automatically shows that we have not received the letter. I t has been an emotionally draining journey and all they care is the business profit and not the interest of their client who has been loyal until Covid affected the business.This case is from Wesbank department financing cars in Johannesburg