help - difficult buyer
so i sold an orange juicer on vinted bcs im moving out. i never used it it was brand new from amazon but one of my roommates must have used it before sending. she washed the inside but not the stand thing. its still in workable condition. buyer received the parcel and requested a refund which is fair i get that. so i requested a return so i can wash it and sell it again -- but the buyer is tweaking and shes like oh im on crutches i cant return im gonna take it up with vinted.
im a college student so i cant js refund her the money and let her keep an 18 quid juicer for free
WHAT DO I DO??!!!