Mylchreests Motors review: Time to get and fit main ecu on a mk4 shogun

Car dropped of to them in june for new ecu and still waiting what can I do please I am at the end of my tether and need something done please they have said waiting for the part and got no staff I need my car back please help I am goin to see them again tomoz to be told lies again, been prommised it would done 5 times now not happy at all sales dep think its a joke because I did not buy the car from them they think the are above reproach. Its the main ecu