My suggestion is to shop on line. See if this helps.
Walmart has them. Order online.
Do they have a Walmart there? Most countries friend to the USA have Walmart stores now. You could get them there or have you tried online? Walmart online may allow you to order them to your address, if not Walmart, perhaps another well known retailer or department store there?
You can order them from Amazon here
Go on line and check out Amazon. Companies like Ball may have them.