> I've rarely seen vendors sharing e-mails with payment and shipping companies
If it was done correctly, odds are good you wouldn't even know those emails originated from a third party vendor. Plenty off stuff you order is fulfilled by third party vendors who specialize in payment & logistics.
For example, if you ever ordered contact lenses from costco, the whole damn thing is driven from vendor called "WVA"[0]. I'm pretty sure it is completely turn-key. Only way I figured out what was going on was looking at the return address in streetview.
I ordered a lockpicking from an online vendor and it was fulfilled by some logistics provider on the east coast. Same kind of thing...
So I'm not actually sure what your problem is, but plenty of businesses have a need to share your contact information with their vendors.
If it was done correctly, odds are good you wouldn't even know those emails originated from a third party vendor. Plenty off stuff you order is fulfilled by third party vendors who specialize in payment & logistics.
For example, if you ever ordered contact lenses from costco, the whole damn thing is driven from vendor called "WVA"[0]. I'm pretty sure it is completely turn-key. Only way I figured out what was going on was looking at the return address in streetview.
I ordered a lockpicking from an online vendor and it was fulfilled by some logistics provider on the east coast. Same kind of thing...
So I'm not actually sure what your problem is, but plenty of businesses have a need to share your contact information with their vendors.
[0] https://wisvis.com/