CMH East rand, worst service ever!

I took my Opel Mokka for its 60 000 service on 7 December 2018. The service consultant is Cecelia. I took it 2000km early as I wanted to service my car before I go on leave on 17 December 2018. I received a phone call to I fomr me that my vehicle has an issue with the turbo pype and they had ordered the parts but my car has to stay with them until its been repaired to avoid risking damage to my turbo. I only received my vehicle back on 13 December. I had a massive issue that week to get to work and back and actually had to take leave and still work from home due to no transport. Then on 15 December I was driving into town and my "Engine overheat" warning light came on. I pulled over at the nearest garage and called GM. They did send a technician to assist me as I was very close to their office. Whe the bonnet of my vehicle where opened it was clearly noted that the water pype was not connected and all the water and antifreeze were gone. The CMH technician made a temporary fix to it and they followed me while I drove the vehicle to CMH. Here they clampt the pype in position and refilled with water and antifreeze and they also cleaned the engine and they sent me on my way. Later the same day my daughter and myself were driving back from town and it happened again. I phoned the technician that did the repair and he said I must phone the customer support line so that they can tow the vehicle to they East rand branch. I was very close to my home so I let the engine cool off and slowly drove it to my house. On the 17 December the tow truck arrived and I was really hoping for a quick repair. I just went through a very dramatic time and my daughter and myself planned this Sabie break away for months and accommodation was paid long in advanced. CMH seemed to have little to no care about the predicament I was in even thought it was caused by THEIR negligence by not clamping the water pipe. It is now 19 December.. I have to phone them basically every day to try and get some feedback on when I can have my vehicle. Just now I managed to get ahold of someone and she told me that the cylinder head needs to be replaced and it's not an quick repair and needs to be done by on of their engineers and they are all on leave and should be available to only start working on my vehicle on 7 January 2019. My whole once a hear break away messed up due to negligence and no one seems to care. My ex husband and myself have been with CMH 14years plus and this is the thanks we get for our loyalty to the brand. Also on my previous service Cecilia told me my service book is missing and not in the folder. I told her I NEVER touched the folder or took anything out of it. I have no reason to. So my service book is still missing. I will never buy any vehicle from CMH ever again, your service is horrible and no feedback what so ever, I have to keep calling and then I still don't receive any answers. By the way if they put me through to Cecilia she NEVER once answered her phone. My whole December holiday is ruined and I lost thousands.