Wrong Value in balance

[BhavyaGoelAppinventiv]

I am using the sample app with my test key. everything is working fine but balance. Some time balance is negative some time it's a random number, which is different from the balance in my account. Please help us to resolve that.

Balance Request :
let req = BasicRPCRequest(
id: properties.rpcId,
jsonrpc: Web3.jsonrpc,
method: "eth_getBalance",
params: [address, block]
)
properties.provider.send(request: req, response: response)

[BhavyaGoelAppinventiv]

I am using the sample app with my test key. everything is working fine but balance. Some time balance is negative some time it's a random number, which is different from the balance in my account. Please help us to resolve that.

Balance Request :

 let req = BasicRPCRequest(
                id: properties.rpcId,
                jsonrpc: Web3.jsonrpc,
                method: "eth_getBalance",
                params: [address, block]
            )
            properties.provider.send(request: req, response: response)

Values we are sending in req

▿ RPCRequest<EthereumValue>
  - id : 1
  - jsonrpc : "2.0"
  - method : "eth_getBalance"
  ▿ params : EthereumValue
    ▿ valueType : ValueType
      ▿ array : 2 elements
        ▿ 0 : EthereumValue
          ▿ valueType : ValueType
            - string : "0xab429566f324d0f6b740c225f5421be27ea692dc"
        ▿ 1 : EthereumValue
          ▿ valueType : ValueType
            - string : "latest"