- The main reason is that if someone rides the train immediately after you and they are already subscribed to your Channel, you won't get a new subscription.
- If YouTube™'s servers are down or undergoing maintenance, it could mean that you won't get 5 subscribers (rare).
- YouTube only allows us to create a certain number of Subscriptions every 15 minutes and if we go over that limit, Subscriptions could fail.
- Someone was subscribed to you and then they manually unsubscribed. That is why we have a Strike System: https://subscribertrain.freshdesk.com/solution/categories/13251/folders/21127/articles/6789-what-happens-if-i-manually-unsubscribe-from-channels-that-i-am-subscribed-to-when-riding-the-train-
If you don't get 5 subs, I know, it's a bummer but there is nothing that we will do about it unless you are a paying customer. In that case, contact us and we will give you tickets in exchange for your missed subscriptions.
To view a history of your last 10 train rides, and any subscription failures you may have had, please take a look at this link http://www.subscribertrain.com/account?view=rideHistory