Recently I received some btc that took about 4 days, there is another transfer that was made May 7th, I have not gotten it yet!
How can I find out the status / when I will receive it??!? I was told that the "slowdown" is due to
higher transfer fees. Will these fees ever lower, and are BTC worth the investment still??!? (Layman Terms Please).
Since May 7th! Are you sure the sender actually did the transaction as claimed? Some people can be funny sometimes. To be sure demand for the transaction ID and then head to mempool to check for the transaction.
Early this year I made a transaction that wasn't received for over 48hrs due to how very low the fee was and based on persistent disturbance from the receiver I had to resend same transaction but this time with a higher fee. So OP you should insist on the sender to resend it again with a better fee rate.
You can also make use of this post for easier support. All about "stuck" transactions and what you can do to fix them
https://bitcointalk.org/index.php?topic=1802212.msg17954548#msg17954548