I also paid to lawyer and they used their own checks to CIS

June 20 to NSC, now I received receipts and FP notice. Around July 15 I emailed lawyer and they checked their bank statement and said their checks had not been cashed. But a few days later checks cashed and receipts received.
Suggest to push your lawyer. Sometimes contact his assitants, they are less busy and would like to check this out for you.