The swap that looks close
a roll of bubble is the usual substitute for bubble pouches, and it is the wrong one. A roll is for a bench that wraps odd shapes all day. A pouch is for a repeated small item.
Packaging Suppliers lists Bubble pouches separately because the jobs diverge as soon as the goods are on the bench.
What the right line actually does
A bubble pouch is one cushioned bag for one item.
Pouches are listed apart from bubble rolls.
If you have already mixed them
Cutting pouches from a roll, badly, is slower than buying the pouch.
At Packaging Suppliers, Bubble pouches does not change the cutoff. Orders by 3pm leave the same day. Under £50 ex VAT the delivery is still available. It is just not the free threshold.
Open Bubble pouches when you already know this line. Pouches are a pack. Read the quantity. Packaging Suppliers will still dispatch an order placed by 3pm on the same day.