Register your copy of 2D Toolkit to get download access, and access to the private support forum.
Please follow these steps:
1. Click on Profile
2. Select Modify Profile > Group Membership
3. Request membership of the 2D Toolkit group, and in the next page, enter your asset store invoice number in the "Please give a reason for joining this group:" text box.
Where to find the invoice number
If you have purchased recently, you will have received the invoice as a PDF attachment. It should look something like the attachment below - the location of the invoice number is highlighted in red.
NOTE: The invoice number is NOT the same as the filename of the PDF - you will need to open up the PDF and get the invoice number as shown in the attachment.
If you purchased prior to the time Unity started sending out PDF invoices, the invoice number will be in an email sent by Unity. The format should be something like this:
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Order Invoice
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Date: 2011/10/1
Invoice no: [b]XXXXXXXXX[/b]
VAT registration (CVR nr.): 30719913
Unity Technologies A/S
Livjaegergade 17, Baghuset, 1. sal
DK-2100 Copenhagen
Denmark