Your + operator doesn't seem to work properly

[memek]

I had a balance $4.99. Then I entered [deposit] section, chose SpicePay and put $5.01 as the amount (wanted to have exactly $10 as a result). I completed the transaction (invoice page shows status as paid - not partially paid!) and finally my balance is... $9.99. Where's my missing $0.01?

[xtruex]

Added 0.01$ in your acaunt