Hence why they suggesting buying from Manufacturers, it wouldn't be impossible to see a compromised wallet on jumia
But if it's found in the manufacturers store
Then you ain't the only one been scammed.
Getting a hardware wallets here in Nigeria will be difficult, except you have someone abroad to get you one and then send it down here for you. Op should just make use of a good softwallet and open source like electrum. I have so many reason why he shouldn't stress of it.. firstly is because getting a hardware wallet in Nigeria where you know that it might get broken and no way to get a good technician to fix it. Again, getting a good and trusted vendor online will also be difficult so you don't end up ordering something that you aren't going to like or use for long.. or even probably get a hacked wallet.