Vehicle stripped!

Took my 2005 Isuzu 300KBi D/C bakkie to Car and Diesel Clinic in Phakamile Mabija Street in Kimberley. I pre-informed the owner that according to the diagnosis by Delta Motors(Isuzu) the diesel pump was faulty and needed refurbishment. The owner took my bakkie for a drive and informed me that its not the diesel pump and that he is in fact going to save me lots of money.Very improfessional with no qoute, no invoice, no repair estimate not even a contact card.I know, stupid of me to leave my bakkie with these people.Found my bakkie stripped in the afternoon(they removed the diesel pump?).Why, they need to send it for repairs.Tell me 4 days later its going to cost R23000.Ask to be given bakkie back as in previous state(bakkie was still driving).Owner says I must pay R23000 to fix it and asked to tow my bakkie away from premises with completely stripped diesel pump and all sort of spares lying in bakkie and cab. Asked to pay R3300 for services rendered.Paid it and took bakkie to new garage, fuel filter and fuel filter holder missing from Car and Diesel clinic.Be careful as these guys are out to make a quick buck out of unsuspecting customers and strip your vehicle for spares!