prossecing. and statments

My acoount is showning something totaly different then what it was yesterday..  No im not talking about my available balance im talking about the credits and the purchases are defferent. For instance i paid a company $318.00 they refunded my money back to me.. i seen it as a credit. Cool. Then i paid anouther murchant $214.00 now.. now i have a pending deposite for $214.00 and a pending transaction. For $318.00 what the hell