I was struggling with the second phase of the first boss for a while...until I saw a tip to hold block button while getting ready to deflect his red attacks. For me, it definitely helped get the deflection mechanic down and got it first try! I think if you counter 2 of his red critical attacks...
I just did this a few days ago - one thing to note: check the expiration date on your console and online. Sometimes they are different (one-day delay in my case) - I needed to wait an extra day before I was able to convert my 3 years of gold. I would wait a day or two to convert - otherwise, you...
In my experience, I think Gamestop might be putting some sort of limit on orders being paid entirely by gift cards. Sometimes I had to wait almost a full day before I can place another order paid all in full with my trade credit.
Just came back from my local DG store - worth noting that you should check all the cards. At first, I saw two stacks of $25 XB cards but decided to check all of them... Turns out the $50 cards were behind.