Discovery Bank not increasing the interest rate we earn when Repo rate moves

The bank increase borrowing rate by 0.75% on 23 Sept and then increase the rate we earn by less than 0.75% a week later. This is ********* and not in line with all other banks who adjust all rates on the same day. But then Discovery are very ********* as a whole. I moved my Life Insurance to another company - same cover for 33% less and after this I am closing my bank account. No more dealings with this dishonest company. Had endless hassles being charged over R 600 interest on a R 1 000 cedit card balance. I took them to the Ombudman and they were forced to reverse it. They are not going to ***** from me any longer.