How to change ebay postal label option for RM 48

WLM21

I sold an item, which is quite small and lightweight so it could easily be classed as a small parcel, or be sent as RM tracked 48, the latter seeming to be the better due to increased value.

I priced at about £3.50 postage, but was going to purchase the label through eBay, but the only tracked 48 option was showing as £5.15, which is the rate for a medium parcel.

How can I change this to the small parcel price of £3.45

thank you

UPDATE !  Found it .. all sorted now