I’d check the details first, because walking in with “my phone is weird” usually wastes time. When my battery was dropping fast and the cable also felt loose, I wrote down what I’d tested: two chargers, one power bank, and a full restart. Reading the site helped me work out which repair categories matched the symptoms before I called. The conversation was much easier after that. They tested the battery and port separately, and I got a clear answer instead of guessing from Reddit threads.