Instruction: Given the user's review, identify the user's sentiment from the listed options. Answer using one of the options.

Input:
do not buy this. i bought one just a week ago and it worked fine at first but now its already not working right. sound is extremely faint even at super high volume. I have emailed seller to replace or refund, i will update once i hear back

Options:
A: very positive
B: positive
C: neutral
D: negative
E: very negative
Answer: E: very negative