I have unpleasant experience with this person known as Zac Low as well. He had contacted me via Carousell and WhatsApp for my tank. He pretended himself to be an intern and trying to low-ball the tank. Later, I found that his identity in LinkedIn as a strategic development manager in a FnB company. From his Carousell profile, I have noted that he has been keep selling alot of similar tanks and equipments in the past. Thus, I suspected that he is a flipper instead of a genuine hobbyist.
I have decided to call off the deal. (I have been labelled as scammer by him because I decided to call off the deal. LOL!) I am fortunate enough that I am skeptical and not to proceed the deal with him, else might end up like what the remaining bros have gone through.