Orders
The return window, the label and the refund all belong to whoever sold you the item.
The retail partner. They took the money, so they run the refund. We never see the order, the payment or the parcel, which also means we cannot start a return on your behalf.
Set by the partner and shown in your account against the order. It is usually counted from delivery rather than from the day you ordered, and it can be different for marketplace sellers than for items the partner stocks itself. Read it there rather than trusting a number on a catalogue site.
Worth knowing before you take the scissors out: once a ratchet strap is trimmed, it is no longer in the condition it arrived in, and most return policies care about that. Try the belt on with the buckle attached and the strap uncut first. If the band is wrong, send it back before you cut anything.
Same route: raise it against the order with the partner, with photographs. Manufacturing faults are a matter between you, the seller and GEIT's own warranty, whatever it happens to be on that listing.
Only this: if the page you bought from described the product wrongly, tell us and we will fix the page. That does not change your return, but it stops the next person hitting the same thing.