The team that handles this is not going to contact you unless your submitting further information like a police report.
OfferUp takes scammer and violations of TOS seriously. If you check the Support information it tells you, once you get a confirmation email regarding your report, no further contact is going to be made. No one is going to call or email you results of what they did.
This is a Community Forum and we are end users, like yourself. If you want further assistance or validation of the complaint being received, maybe our Community Manger @MJ_206 can help.