This doesn't surprise me. They have messed around with mine for almost 8 weeks now. Still at the point where I am chasing moneys for tax on my previous vehicle because they didn't even bother to send off the documentation. They are the ones messing up but I am the 1 doing all of the chasing. I get no feedback or information from them at all. They took money out of my bank for the van I rejected when they shouldn't have and left me overdrawn, which has taken 3 weeks to get back.
The sales manager isn't the most reasonable person but if they have messed up your order then you are 100% within your right not to accept it. They do not like to accept responsibility for their mistakes. I bought a van that was in poor condition and was full of scratches. It wasn't the vehicle I had originally seen so I rejected it. The sales manager tried his best to convince me that the vehicle was perfectly acceptable. I showed the van to 1 of the salesman and he said he would be embarrassed to hand the vehicle over in that condition and he couldn't believe they had accepted it from another dealership in that state.
Keep pushing and never back down to them. Their customer service is terrible and they never keep you updated once things dont go there way. I eventually ended up getting a van that was £1200 more expensive, for the same price as the original van I bought. The sales manager has never once accepted he was wrong and has never been polite or professional about it, but I stood my ground and they eventually had to give me a better van for the same price. This let me know that I was right all along and he was just trying to maximise profits by trying to convince me it was in an acceptable state.
1 of the guys working there told me they messed up somebody's order not long ago, who had fully kitted out their vehicle and he said something along the lines of a £70,000 vehicle. They missed something off his order and he rejected the van. The salesman said they now have the most expensive test vehicle in the country.