Home loan process taking ages

Home loan was approved and bond registration attorneys requested a change of my name in documents from standard bank,a process I was informed takes 3 working days and its now almost 3 weeks and we risk the sale agreement and sellers pulling out,yet I have already paid bond deposit with attorneys, it's so disheartening and I chose their quote over my bank FNB..now we are likely to pay rent one more extra month after September because a change in name in.documents takes close to a month,I'm so gutted, I have taken out all the required insurances ie buildings,life and even opened a current account for concession and I must start paying bank charges for that account when nothing had been finalised still.Worst part noone tells you how far the progress is.I think we will end up losing the house and forced to start a ***** again,can someone advise where the hold up is because I have submitted every single thing requested of me