Best way is to be friend with them so they will mod your map in notime.meow
In case your map is bubbled, only thing you need to do is to increase SP. High SP-bubbled maps are first priority for BATs so in case you have bubble it shouldnt be a problem
However in order to get a bubble honestly IN-game PM was the best method from my experiance because usually they don't have any queue. Just make sure you read their signiture and userpage before doing so.