We've checked the list of patrons that were charged for April's update. We don't have you there, so that's why you didn't got the links. If you removed your pledge before the charging post (these posts have the label "Paid for by patrons") was published, you were not included in the patrons group who were sent the link via message.
The patreon account for this project is set to only charge patrons if we publish a charging post (which comes with the private message with the links). The account won't charge monthly nor upfront. It only charges if we publish an update. This way we won't charge patrons if in any month we don't have a new update to publish. The updates will be posted on the last day of each month (around night hours). If you join the patreon page after an update was published, you'll have to wait until the next one is published, or you can get it on Gumroad.
If you have any questions, just let me know.
I wish you a nice day!