I receive calls after every holiday.
“My brother was supposed to look after my cat, but he didn’t comb her. Now she’s completely matted! Can you groom her today?”
You diligently combed your cat, but a week or two without combing undid all your work.
Select a cat sitter, such as myself, who can also do some combing, as long as your cat allows strangers to comb her.
Schedule a grooming session for a day or two after your return, so that you won’t have to worry about whether the cat groomer will be available.
Schedule a thorough combing, and perhaps a bath, before you leave on vacation. De-shedding should help to cut down on matting, since mats are made of natural skin oil and shed fur.