Pathetic service

I drive a 2014 1.4 Figo ambiente, just after Easter my motor seized, I had car towed to best drive wilrogate, they determined the motor had seized and suggested I replace the motor, they quoted me on a 1.6 Ford fiesta motor, I told the mechanic that is fine as long as it works and no issues, he assured me it will work. From day 1 if getting my car back I kept taking back telling them it was not right, this went on for few weeks, just before my June trip they discovered the water had mixed with the oil, this was after I had kept taking the car back explaining something was wrong. They fixed the head and eventually have car back to me, I warned them in Sept I would be traveling to pe with the car and assured me all was good. I then noticed I was starting to use oil which I had never done on previous motor that had almost 300000km on, they kept giving it back saying there no oil leak, the week before my trip they bring the car back and advised they changed two oil seals on the side of motor and tried to charge me for this and again assured me it was now 100%. I had also been complaining about the loud start and how long it took the motor to warm up and idle correctly from day one and they advised this was normal as it was Ford and a bigger motor. Mid Sept I leave for my pe trip, I arrive in pe but hear the car sounds funny. I decide to open the bonet and check the water and I discover oil on the side of the motor from the top. I leave the car to stand for almost 3hours to cool down then go check the oil and there was almost no oil left in my motor. I get hold of them to explain what has happened and what do they plan on doing, they arrange for a mechanic to come out the Saturday and have a look from the outside and top up my oil, that's all. After the guy leaves I start the car to go to shops but there is a tapping noise so I immediately switch the motor off and call this mechanic and advise this. He advises he needs the car by his workshop to physically check and he will let best drive know. Best drive hire me a car and arrange for my guy to go to this guy on the monday. I hardly hear anything from best drive during the course of the week, I eventually get my company to start contacting the mechanic to try find out what is going on. The rental was only booked till the Thursday, the day before best drive extend the rental till Friday. On Thursday afternoon once report been given that it looks like the rings have dropped and the motor needs to be redone I get notified by best drive that it is no longer their problem, I must pay for my car to be fixed, I must return the rental the following day and make my own arrangements to get back to job at the end of my holiday. They refused to take responsibility for poor workmanship, for their mistakes, the min they realized the motor was stuffed that they had been working on from day one of giving the car back to me they ran away and blocked all lines of communication from me. Needless to say they never once verbally discussed any warranty or guarantee on the new motor, it was never stipulated on their invoice either. Plus they basically did the exact same thing to one of my work bakkies which cost my work more money to have a motor they installed redone basically. I would never recommend any best drive as whole but especially the wilrogate branch in anybody and I advise people to be very careful of them aswell