I gave an interview for a Phd position and I was offered the position within a day of the interview. I accepted the offer withing two days (before the deadline) and sent an email stating my acceptance of the offer to the supervisor who interviewed me. No acknowledgement was given and thereafter I have not received any further emails from their side. I sent another email to follow up and ask if they received my first email, but still no replies. It is now been 2 weeks since they last emailed me. Should I keep waiting, or send another email or just move on and apply for other positions.
I tried all emails I could find to contact them. It is not an email delivery problem, since I corresponded with them using the same email many times before the interview took place and I am receiving emails from other people without any problem.
Edit : Now I have another PhD offer and have a deadline to acfept and reject. Still no replies from the first offer. It is almost been a month now.
What would be the best way to go ahead in this situation? I don't want to be dishonest by accepting both offers and but I also don't want to lose both in case the first offer doesn't work out. The first offer was not an official one. The email read ' We would like to offer you in the position.'