I received an offer through e-mail 2 weeks ago and was told that an e-mail reply is sufficient to accept the offer. I accepted the offer immediately, but since then didn't hear anything back from the company.
I followed up on this Tuesday but again didn't receive any response. The offer is set to expire mid next week so I'm getting little anxious due to lack of confirmation given.
Should I be worried? I only have the e-mail address of the recruiter so I can't call her either.
(This is for summer internship position at one of the big tech company.)