Bot Retrieval not working well

I just bought some TF2 keys and every time I try to retrieve them I get “Failed to connect to Steam-please retry” despite being able to add items via Bot Trade for listing. Anyone know what the issue is? Wondering if this is also why I have people buy the same in-game item 2-3 times without ever retrieving.

Edit: After many tries I have now received “Steam says too many requests–please try again” After waiting a bit longer trade offers are starting to trickle in. Either way a very poor/buggy buying experience that took about 30 mins.