Yes, you may.
Please read the previous messages in this thread, where there is an answer to your question.
@959531 -- check via the My Shaw Portal to see if your payment has been received by Shaw.
If you paid through this portal, Shaw has received your payment.
If you paid through your bank/credit-union, it may take a few days, even in this world of electronic banking, for Shaw to receive your payment.
In the past, I have accidentally missed one payment, and then paid it within the month, and Shaw did not cut-off my services. So, don't panic, unless you are several months in arrears.
A telephone-call to Shaw (1-888-472-2222) to confirm the payment might be useful.