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You can buy the photography CC from http://www.adobe.com/products/photoshop/buying-guide.html
Special single app pricing on Photoshop CC. Hurry — limited-time offer.
The present subscription can be canceled without any penalty , you can contact Adobe or you can inbox me the order number of the present CC to get it canceled.
To switch your plan from CC(photoshop) Single app membership to Photoshop Photography Plan, CC (photoshop) need to be canceled and then only you can purchase other plan.
To cancel the subscription please follow the following link:
You may also contact Customer Support;
1 person found this helpful
I have responded to your message, enjoy the new photography CC