Thank you very much for clarifying. First of all, I am sorry to hear about the issues you have experienced in your situation.
When a consumer enters into a contract for services, the Consumer Rights Act 2015 says that such services must be:
- Finished within a reasonable time (unless a specific time frame has been agreed)
In addition, any information exchanged in communications between the parties, whether written or verbal, is binding if the consumer relies on it to proceed with the services in question. If there are problems and the trader cannot satisfy the above criteria, which are legally expected of them, the consumer will have certain rights
In the case of delays, for example if the work has substantially gone over the agreed schedule or not been performed within a reasonable time, the consumer can ask for a price reduction to cover any financial losses or inconvenience caused as a result. What that compensation is would depend on various factors, such as the length of delay, reasons for it, impact it has had on you, any costs incurred by you, etc.
I appreciate the delay has been much longer than anticipated but you have been given a courtesy car in the meantime, which even with lower specs, is not that much different so the inconvenience has not been major as such (at least that is what a court will likely believe based on the facts).
There is no way you will get the repairs for free I’m afraid, it is unreasonable to try and argue that the discount should be 100%, unlikely to even be 50%. You are looking at a percentage in the region of something like 20-30% perhaps, even though that could still change in either direction if a court has to make the decision on it.
You should try and negotiate this with the company for now but court is always there if you need it.