Atlas OK, Budget Car agency Mauritius Airport diabolical

Arrived in Mauritius and located the Budget car rental desk without effort. The paperwork went well to begin with, but Budget would not honour providing the GPS Navigation system that was to be "included" in the rental by Atlas. They then said they would honour the Atlas "per rental" rate for the GPS that Atlas quoted for rentals where it wasn't included, but said that they wanted in IN CASH and the rate would be charged for each day not once for the entire rental. We did not take the GPS. No one available to speak with anywhere aside from the desk clerk. The vehicle was in terrible physical condition, looking like it had been in many scrapes and we didn't know until the motorway, that we could not drive it above 50 km/hr because of other mechanical problems, tyres and balancing - none of this divulged by Budget at the airport. Two days later, and unable to drive it during this time, the hotel arranged an exchange and the replacement vehicle was good, although also quite cosmetically damaged.