It's not about the funds you left there, it's the GH/s...do they like refund us or something? I mean, imagine if you invest 20btc, in 3 months before you even break even from the mining, they shut down...what happens with the miners, where is our money??
Well, if you have 20BTC worth of hashing power (200Ghash @ 0.1) they should allow you to redeem the hardware and have it sent to you