Better call them Scamunited.
I have been asking for my coins for 3 month but they kept saying that wait for the final withdrawal date and now they are asking withdrawal fee of 4LTC which worth more than my actual coins.
Don't stake with them, I am going to report to the anti fraud department and i am going to sue them, no matter whatever cost I have to pay but I'll teach them a lesson.
I never use staking pools, but it's better to make your judgement on StakeUnited that this one is a scam pool if you can show off snapshot of your problems on the pool.
Snapshotted images will make your judgements have higher powerful validity.
Iinteresting and unique concepts are made by StakeUnited, hopefully they can develop the more interesting projects in the future