If you need to switch from PayPal to Credit Card payments or vice versa, you need to temporarily downgrade your Mouseflow account to the Free Plan. You can do this by following the steps below:
Navigate to your Mouseflow Account Billing section here
Click "Change" on the right-hand side, which will take you to the subscription selector.
Choose the Free Plan.
Under the module titled "Are you sure you want to downgrade" select the option titled "I want to downgrade and lose these features".
Next, click "Confirm Downgrade". You won't lose any data on your account by doing this.
Once the downgrade is complete, you can upgrade again using your preferred payment option.