Time to go along at the busy times and ask, in a loud voice, if these are likely to have the same kind of problems and crap customer service as the MG4, i.e. saggy undertray f'r example
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Think it might be that it needs to be fitted to a new ( or at least unwarped) undertray. I think once it's warped it's too late to straighten out again. Fine if it has happened yet, but if it hasn't happened yet, is it needed kind of catch 22 situation.
That would stand to reason or no point in doing it. Was it definitely the same tray ?
If you are slightly handy on the tools ,then may I recommend " undertray bodgy fix " as a search, posted by one of Englands leading sheetmetal worker and maintenance engineers. 8 months on and still fixed as intended .There's a link to register the fault with MG somewhere in one of the threads . Having registered it with my dealer I myst find that again and do it. Best let them know from all sides.
In the meantime if anyone's got any mates in the fabricating business and a friendly ramp owner....
Accrington reds and some timber could makeup some temporary ramps if you were desperate! I did mine with the wheels elevated on 150mm ramps and slid underneath on my back on some old cardboard. 
