I have and use both for different applications. SHV = reliability. Z3 = lighter with a slight edge to glass also. I put a SHV on my western back pack rig for the reliability with if an unfortunate gun scope accident. I use the Z3 scoped rifle every other home (eastern) non treeshand hunting...
Tarptent Aeon Li. Cuben fiber. Lightweight amazing Tent. It’s rated for a 3+ season tent. Includes 6 stakes with reflective guyline. No holes or repairs on tent. Small holes on stuff sack. Weight is 1lb 4oz on my scale. $415 shipped in lower 48. PayPal, Venmo, other for of payment accepted.
They were playing you from the very beginning. They knew what they could and could not provide for you and didn’t care. They wanted the $$$ and that’s all that matter. They used the old “truck broke down excuse”. They less they provided the more $$$ for them. Sorry to hear about your experience...