Delayed payment for 3rd Party Claim

I'm not happy with the service I'm receiving regarding my 3rd Party claim. The legal person has finalised the claim (after so many delays from their side) and sent me the release form for my pay-out. I signed it and sent it yesterday morning but haven't received any feedback from the legal person on whether or not she has submitted my banking details in order for them to pay me. I've already incurred many expenses out of my own pocket due to delays that were caused by them and I've booked the car in already to be repaired and be done in time for my wedding so I need SANTAM to pay me ASAP!!!! To think I wanted to move all my insurance policies to them...I sure as hell won't after this experience. Tell me when I will receive the money. Submitted documents yesterday and SANTAM's payment process takes 5-7 working days meaning I must receive my money by 12 December 2018 for the latest! If she delays the submission I will be paid later meaning that my car won't be released in time for my wedding and I won't accept that!!! Your service sucks