quaterly questions

Can any one answer the following question for me?

1. How come the "Other working capital" dropped by over a million when compared to previous quarterlies?

2. The receipts from customers has been dropping over the last 3 quarters, yet the company says they are signing up more people. Are they losing more than they replace or am I missing something about the payment cycle?

Bought in last week, looks to be a good company but the declining receipts worries me a bit.