I sold some empty tennis ball tubes (390453933937) and the buyer bid and paid but then left me negative feedback as she said she thought they were for balls and she didn't see why someone would sell empty tubes. She also said it wasn't clear in the listing yet it is obviously for tubes only as it says so in the title and the details and the picture. She didn't contact me before leaving the negative and I only found out what she thought when I asked her why. This has now dented my feedback.
Someone else bought a jumper (390460355681), said it was dirty and threw it away but didn't contact me before leaving negative feedback and even though I gave them a full refund i've got another neg against me.
Can i do anything about it as one was fault of buyer and the other got a full refund and neither contacted me first.