Questions About Account Signing and Selling XMR on Haveno Safely

Hello everyone.

Last week, I used Haveno (reto) to buy XMR for the first time, and everything went really smoothly. Now, I'm considering selling small amounts of XMR, but I have a few concerns and questions before jumping in.

I've been trying to figure out how the account signing feature works, but I haven’t found any clear documentation.

How does the signing system operate on Haveno?

What’s the process for getting your account signed, and how important is it for someone who wants to start selling XMR? Are there specific benefits to having a signed account, aside from trust and higher limits?

Risks with SEPA Payments:

How likely is it that someone could pay me with a stolen/hijacked bank account when using instant SEPA? I’ve heard that chargebacks can happen if this is the case, but I’m not sure how common this risk is, especially for smaller transactions. Has anyone who's used Haveno or Bisq experienced this?

Using PayPal (Friends & Family):

I was thinking of using PayPal and enforcing "Friends & Family" payments to avoid chargebacks. However, is this even an option for selling XMR? Has anyone actually done this successfully, and if so, what should I be aware of?

I’d appreciate any advice or experiences from people who have been selling XMR in these ways. Thanks in advance!