Added FAQ

FAQ.md

@@ -577,6 +577,27 @@ For example shortage of memory could lead to increased loading times, because me
 
 In some circumstances, restricting system apps and system components is known to cause the application list to load slowly or not at all. The exact circumstances are unknown.
 
+<a name="FAQ59"></a>
+**(59) Can you help me restore my purchase?**
+
+Google manages all purchases, so as developer I have no control over purchases.
+So, the only thing I can do, is give some advice:
+
+* Make sure you have an active internet connection
+* Make sure you didn't block Google Play store / Play services
+* Make sure you are logged in with the right Google account and that there is nothing wrong with your Google account
+* Open the Play store application and wait at least a minute to give it time to synchronize with the Google servers
+* Open NetGuard and navigate to the pro features screen; NetGuard will check the purchases again
+
+Note that:
+
+* Purchases are stored in the Google cloud and cannot get lost
+* There is no time limit on purchases, so they cannot expire
+* Google does not expose details (name, e-mail, etc) about buyers to developers
+* An application like NetGuard cannot select which Google account to use
+
+If you cannot solve the problem with the purchase, you will have to contact Google about it.
+
 <br />
 
 **NetGuard is supported for phones and tablets only, so not for other device types like televisions or vehicles.**

README.md

@@ -262,6 +262,9 @@ Frequently Asked Questions (FAQ)
 <a name="FAQ58"></a>
 [**(58) Why does loading the application list take a long time?**](https://github.com/M66B/NetGuard/blob/master/FAQ.md#FAQ58)
 
+<a name="FAQ59"></a>
+[**(59) Can you help me restore my purchase?**](https://github.com/M66B/NetGuard/blob/master/FAQ.md#FAQ59)
+
 Support
 -------