in Auguest. 已经一个半月。从未收到任何信件， 包括receipt notice。 So far 没有receipt number. Checks 已被cash out. check 背面显示是Aug9. Check 背后有一堆number,没一个是13 digits or begin with WAC, etc. 请问，如何才能知道 receipt number, or how can I check the case status without a receipt number? Or, which one on the back of the check is the receipt number which I can use to check the case status? 这种情况正常吗？请有经验人指点。