My Account is Being Impersonated on Instagram

My account is being impersonated, with my name changed to "G***," using my profile picture, and messaging people I know. This bogus account is relatively new, as evidenced by the word "new" on its profile. They're using my photos and information to send requests and messages to my followers. I can't contact them because the imposter's account, which contains inappropriate content, has blocked me. I've already reported the impersonation on Instagram and provided screenshots as proof, but I'm still concerned. I desperately need assistance, but I couldn't locate Instagram's customer service number. The situation is extremely upsetting, and I require immediate assistance.