Travelling to Kuala Lumpur

I booked air tickets to Kuala Lumpur yesterday.Then,I also booked hotel yesterday.I just received the confirmation of the reservation this morning.An incident had happened.I missbooked our room to Standard Double which has only a king size bed.It counld not accomodate us.So,I e-mailed to the staff to make the change.Finally,he replied my e-mail.Luckily the room had been changed.My request was successful.I f not I will be scolded by my mum.Oh my god...