Bill Corrections and High monthly bills

I seemed to have had 10 bill corrections on the 8th July. For some reason. It has made my usage really difficult to track
My latest bill came in at £136 for electric just for one month. I can’t help but think that is too high?? My IHD suggest that my usage is on average 7p to 9p an hour. Bearing that in mind my electric shouldnt really be too much above £70 surely factoring in standing charge. Is there any way there could be incorrect readings being sent?