When posting your Peruvian nuevo sol you should use Royal Mail's Special Delivery service which is fully insured and guaranteed to arrive on the next working day. Packages sent by Special Delivery go through a more secure process than regular mail and can be tracked from the moment they enter the system right up to the point of delivery where they must be signed for by the supplier. It is very rare for Royal Mail to lose a Special Delivery package, but in the unlikely event this does happen Royal Mail will refund you the entire insured amount plus postage costs. You can also reclaim your postage costs if Royal Mail do not deliver your currency on time.
When you purchase Special Delivery you'll be given an option to insure your package for up to £2,500 and you'll be presented a receipt which contains a tracking number and proof of postage. If you are sending more than £2,500 worth of Peruvian nuevo sol, you can split them up into multiple packages and insure each package for an appropriate amount.
The cost of Special Delivery varies depending on the amount you've insured the package for, but we estimate this cost for you in our comparison results above. You should ensure that your Peruvian nuevo sol are securely packaged before you post them; we recommend you use a plastic tamper-proof envelope that you can obtain from the Post Office when you purchase Special Delivery. If you are in any doubt, just ask the Post Office clerk to check your package before you send it and they will advise you on whether it is suitably packaged and insured.