Good morning . You had registered for CA foundation but payment window not appearing in this case you can refresh and try again. If you are using mobile for registration then i will suggest you to use laptop or desktop. And if still the issue persist then i will suggest you to visit your nearby CA chapter and get yourself registered directly from office. This is the best way beacuse the chances of error will not be there. After registration you will get your foundation study material. Best of luck
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