Disillusioned with Samsung South Africa Online Store insurmountable technical glitch with online trade-in form

Very dissatisfied with Samsung South Africa Customer Service and the so-called guaranteed trade-in value of R 10 000, subject to conditions, which is the main reason I bought the Galaxy Z Flip4. Bought the new Galaxy Z Flip4 in the Samsung South Africa online store. Cannot do a trade-in online as the trade-in online form does NOT accept the imei number of the new Galaxy Z Flip 4!!! Sent emails, spoke to various consultants, lodged formal complaint - *** - and no one can resolve the problem. Samsung online consultants say other users are complaining too as the system refuses to accept the new device's imei number, so a trade-in online is simply impossible. No one mentioned a word of a trade-in online glitch when I purchased the device online and first spoke to a consultant at length(Mphondo)!!! I have suggested that the Samsung IT cyber experts fix the glitch asap, to no avail, as there is a 14 day return policy and the clock is ticking. I have tried everything and now am told that I should go to a physical Samsung walk-in centre before I can do a trade-in - I am sitting in Kruger! The whole online order, purchase and delivery was a breeze. Now that I want to do a legit trade-in with an acceptable trade-in device - a Huawei P30 Pro 256, in perfect condition, there is some technical glitch as 'the new Galaxy Z Flip 4 is so new the system can't see it and hence the imei number is rejected on the online trade-in system' according to consultant Thami. This is totally and utterly ridiculous and unacceptable!!!