Bad service aha Bloemfontein

Made a booking via booking.com.Immediately realised I made a mistake just after paying accommodation for 2 weeks.Immediately send a message to try and rectify the mistake(mistakenly selected a room for 1 occupant and not 2).Upon arrival at the hotel less than 1 hour later we were not even welcomed properly like you should be welcomed at a hotel or any accommodation establishment.Keep in mind I ended up paying R10 325 ( a whole Ten thousand three hundred and twenty five rand). The Staff on duty needs to undergo serious customer service training.Bad attitude from the guy on duty.Would not assist with changing the deal to the option for two people.The option was R1257 more than the single occupancy one,but the guy insisted I pay R2100 more and not the R1257.Even though I immediately informed them via booking.com that I mistakenly selected the wrong option.This is bad customer service.I stayed at this establishment twice before,but I will not return.If this is how you treat loyal clients I never ever want to experience it.The walls of the room we ended up in is water damaged and the carpets stained (one looks like a burn mark).Not a nice experience at all.After I spend thousands of rands.