Yep, it's been a very frustrating time for Private sellers all having to use Simple Delivery now, which has an issue that sellers cannot combine postage.
Sellers are finding the best way forward once multiple postage needs combining, is to cancel the orders, with the buyer's permission as this then doesn't affect their seller performance, and then relisting them in one listing for the buyer to buy again!
A faff I know, and best to ask a seller before buying, if they are willing to do this.
@j_uk042
