### Detailed step-by-step solution:
1. Identifying the Company that Issued the Receipt:
- The document contains references like "aqualia".
- Based on this reference, we can determine that the company presenting this receipt is "aqualia".
2. Determining the Type of Consumption:
- With the reference to "aqualia", it is known that this company provides water services.
- Thus, the type of consumption is water.
3. Identifying the Period the Receipt Corresponds To:
- Upon careful examination of the document, there are no clear indications of a specific period mentioned.
- Therefore, the period corresponding to the receipt remains unknown.
4. Calculating the Total Amount to be Paid:
- The document lists 19.11 at the bottom.
- Therefore, the total amount to be paid is 19.11.
5. Determining Which Period Had the Highest Consumption:
- Similar to identifying the period, there is no clear indication of different periods and their respective consumptions in the document.
- Consequently, the period with the highest consumption is unknown.
### Summary:
- Company Name: aqualia
- Type of Consumption: Water
- Period Corresponding to the Receipt: Unknown
- Total Amount to be Paid: 19.11
- Period with Highest Consumption: Unknown
