VogstyleMen's Turn-down Collar Casual Woolen Coat Winter Long Jacket Single Breasted Overcoat

Why have i got to wait until 8th of December to 18th for this item to be delivered when it states delivery in 2 days?

I'm only a 36" chest, the XS would fit my arms, full length, and shoulders fine, but how much of a difference would it make that my chest is smaller?

Is 48-50 the largest size that you sell?

I am chest size 46” normally an l or xl but the size chart says i need an m is this correct please?