UK Domestic Post
As the items we sell are mostly high value and mostly things that don't belong to us (your frames), we choose "Royal Mail Special Delivery" as our carrier for a fixed fee of £7.50 per parcel. If you don't want to pay so much for shipping then we are happy to look at lower cost options but these do not come with the same guarantees of delivery times or insurance against loss. Just saying.
The same as above applies to you but we'll use a carrier like UPS or DHL. We'll make sure it is tracked and insured all the way. It will cost a lot more than £7.50 but we'll look for the best value and let you now in advance of working on your order what the shipping cost will be.
If for any reason you would like to return your item within 30 days of dispatch then that's fine. I hope you don't but I'm not going to argue with you about it. I also hope you give us a chance to put things right but if we can't, we'll give you your money back.