Pre Authorization Fee still on hold

On the 28th I requested for an amount of R122 and it was charged as a pre authorization fee on my bank account, on the 1st it increased and deducted R132 however the pending R122 pre authorization fee was not released. I am told that I should contact my bank and that Uber cannot help me whereas I requested with them and they put the pre authorization on my account. Very unprofessional and lack the care which I have believed to be part of Ubers values. Such bad client service.