Jeep wrangler front diff

My Jeep-wrangler front diff centre bearing seized and took it to above named person Phillip he said he need to replace cent and and 2 other bearings He took the diff out to strip when I paid him for worked done I notice variose alarms sustaining and a very bad vibration on the propshaft I took the Jeep 5 times back to sort the alarms and the vibration problem Every time he said he will sort it out but every time the same story and he said its not his problem I must sort it out bymyself their is no vibration he balanced it 5 times He took the propshaft off and the vibration was gone I phoned him when is he going to sort out the alarms and he said I must take it to Bosh and pay it myself I confront him on the phone when is he sorting out the alarms he shout at me and said I must come their and he will sort me phisically out he will moer me I said no problem as I was on my way he said sorry he will sort out my problems I phoned 5 times every time his got a excuse Bosh is so busy I must come and take my propshaft and sort my own problems out arogant and throw the phone in my face I am sittig now with the propshaft off and also no alarms been cleared Unexceptable sort him out please !