Shopify Subscriptions

In general, it works seemlesly. There seems to be a glitch in which in the products I select for subscription, two subscription options appear. I have not been able to remove those. It'll be great if I can modify subcription date, so I can match all my monthly Chocolate memberships and fullfill / ship the same week of the month. Also, some members / contracts are cancelled with no appparent reason, then my cliente must do a new contract