anyone knows if they accept debit cards for mining rigs payments ?

Hey guys first post in here looking to get into ltc mining for a while now but seems like i have to wait till september to get few L3+.
My question is whats the best  payment option ordering from Bitmain?
Although wire transfer sounds ok from what i read so far , i think paying in bitcoin would be better due to faster transactions plus no questions asked by the bank.
So instead of wiring the money should i just buy BTC and send it over to them ?
Anyone else paid in BTC and had no issues ?
thanks in advance pretty informative forum